cvedb.io
CVE-2026-27496
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-03-25T18:16:31.310 · Last modified 2026-06-17T10:27:15.343

Summary

n8n is an open source workflow automation platform. Prior to versions 1.123.22, 2.9.3, and 2.10.1, an authenticated user with permission to create or modify workflows could use the JavaScript Task Runner to allocate uninitialized memory buffers. Uninitialized buffers may contain residual data from the same Node.js process — including data from prior requests, tasks, secrets, or tokens — resulting in information disclosure of sensitive in-process data. Task Runners must be enabled using `N8N_RUNNERS_ENABLED=true`. In external runner mode, the impact is limited to data within the external runner process. The issue has been fixed in n8n versions 1.123.22, 2.10.1 , and 2.9.3. Users should upgrade to this version or later to remediate the vulnerability. If upgrading is not immediately possible,

Affected products

n8n — n8n

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.